Ethereum (ETH) co-founder Vitalik Buterin has been quite vocal recently about the non-financial applications of blockchain technology and has published a paper on June 12 listing some use cases. In a paper titled “Where to use a blockchain in non-financial applications,” in the first place, the Ethereum mastermind said one of the biggest challenges in a cryptographic account system is the issue of private key changes. ...Read More: Top Blockchain Non-Financial Applications According to Vitalik Buterin